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Python’s new t-strings

(davepeck.org)
620 points tambourine_man | 1 comments | 21 Apr 25 04:31 UTC | HN request time: 0.204s | source
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TekMol ◴[21 Apr 25 08:37 UTC] No.43749608[source]▶
Will this allow neat SQL syntax like the following?

    city = 'London'
    min_age = 21
    # Find all users in London who are 21 or older:
    users = db.get(t'
        SELECT * FROM users
        WHERE city={city} AND age>{min_age}
    ')
If the db.get() function accepts a template, it should, right?

This would be the nicest way to use SQL I have seen yet.

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1. zahlman ◴[21 Apr 25 21:58 UTC] No.43756963[source]▶
You would need triple-quotes to span multiple lines, but yes, that is exactly how it's intended to work. `db.get` will receive a Template instance, which stores string parts something like `('\n SELECT * FROM users\n WHERE city=', ' AND age>', '\n')` and interpolated parts like `(Interpolation('London'), Interpolation(21))`. It's then responsible for assembling and executing the query from that.